LBRYCommunity/cpuminer
1
0
Fork 0
Code Issues 3 Pull requests Projects Releases Packages Wiki Activity

Add some code comments.

Browse source
This commit is contained in:
Jeff Garzik 2010-11-23 23:54:37 -05:00 • committed by Jeff Garzik
parent 9bc3649e91
commit 16b535e2dd
1 changed files with 8 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
cpu-miner.c
View file

@ -281,6 +281,7 @@ static const uint32_t init_state[8] = {
0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19
}; };
/* suspiciously similar to ScanHash* from bitcoin */
static uint32_t scanhash(unsigned char *midstate, unsigned char *data, static uint32_t scanhash(unsigned char *midstate, unsigned char *data,
unsigned char *hash1, unsigned char *hash) unsigned char *hash1, unsigned char *hash)
{ {
@ -320,9 +321,11 @@ static void submit_work(struct work *work)
printf("PROOF OF WORK FOUND\n"); printf("PROOF OF WORK FOUND\n");
/* build hex string */
for (i = 0; i < sizeof(work->data); i++) for (i = 0; i < sizeof(work->data); i++)
sprintf(hexstr + (i * 2), "%02x", work->data[i]); sprintf(hexstr + (i * 2), "%02x", work->data[i]);
/* build JSON-RPC request */
if (asprintf(&s, if (asprintf(&s,
"{\"method\": \"getwork\", \"params\": [ \"%s\" ], \"id\":1}\r\n", "{\"method\": \"getwork\", \"params\": [ \"%s\" ], \"id\":1}\r\n",
hexstr) < 0) { hexstr) < 0) {
@ -333,6 +336,7 @@ static void submit_work(struct work *work)
if (opt_debug) if (opt_debug)
fprintf(stderr, "DBG: sending RPC call:\n%s", s); fprintf(stderr, "DBG: sending RPC call:\n%s", s);
/* issue JSON-RPC request */
val = json_rpc_call(url, userpass, s); val = json_rpc_call(url, userpass, s);
if (!val) { if (!val) {
fprintf(stderr, "submit_work json_rpc_call failed\n"); fprintf(stderr, "submit_work json_rpc_call failed\n");
@ -353,6 +357,7 @@ static int main_loop(void)
struct work *work; struct work *work;
uint32_t nonce; uint32_t nonce;
/* obtain new work from bitcoin */
val = json_rpc_call(url, userpass, rpc_req); val = json_rpc_call(url, userpass, rpc_req);
if (!val) { if (!val) {
fprintf(stderr, "json_rpc_call failed\n"); fprintf(stderr, "json_rpc_call failed\n");
@ -365,6 +370,7 @@ static int main_loop(void)
free(s); free(s);
} }
/* decode result into work state struct */
work = work_decode(json_object_get(val, "result")); work = work_decode(json_object_get(val, "result"));
if (!work) { if (!work) {
fprintf(stderr, "work decode failed\n"); fprintf(stderr, "work decode failed\n");
@ -373,9 +379,11 @@ static int main_loop(void)
json_decref(val); json_decref(val);
/* scan nonces for a proof-of-work hash */
nonce = scanhash(work->midstate, work->data + 64, nonce = scanhash(work->midstate, work->data + 64,
work->hash1, work->hash); work->hash1, work->hash);
/* if nonce found, submit work */
if (nonce) { if (nonce) {
submit_work(work); submit_work(work);